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, M. Heating Water Piping <br /> 1. Type "L" hard drawn copper tubing ASTM B88 with wrought copper fittings, <br /> � using 95/5 solder or brazing. <br /> 2. Provide a dielectric union at all junctions of dissimilar metals. <br /> � N. Acceptable Valve Manufacturers: <br /> 1. Apollo, Stockham, Milwaukee, Grinell, Victaulic, Nibco, Gustin-Bacon, Crane, <br /> Jamesbury, Clow, Watts. <br /> � O. Natural Gas Piping <br /> 1. Schedule 40 black steel with standard weld butt fittings inside of building. <br /> Threaded piping is allowed for final equipment connections only. <br /> � 2. Schedule 40 black steel with standard thread fittings. <br /> 3. Type "K" soft copper with brazed fittings. <br /> 4. Exterior Underground: Standard weigh wrought iron, galvanized or black steel or <br /> � approved plastic pipe. <br /> 5. Provide shut off valve at all gas fired equipment,tag as required. <br /> 1 P. Check Valves-Domestic and Heating Water Piping <br /> 1. 2-1/2 inches and Smaller: Equal to Stockham Figure B-319, 150 pound bronze, <br /> screwed ends, bronze disc, swing check. <br /> � 2. Non-Slam Check Valves - 2-1/2 inches and Smaller: Equal to Clow Figure 329, <br /> 150 pound silent check valves with Buna-N inserts. <br /> 3. Non-Slam Check Valves - 3 inches and Larger: Equal to Clow Figure 636, 150 <br /> � pound silent check valves with Buna-N inserts. <br /> Q. Ball Valves- Domestic and Heating Water Piping <br /> l. 3" and Smaller: Equal to "Apollo" Series 70-100 ball valve, 600 psi WOG, <br /> � bronze body, chrome plated brass ball and blow-out proof brass stem, reinforced <br /> Teflon seals and seats and extended stem to accommodate insulation. Where <br /> valves are used for balancing purposes, provide balancing stops. <br /> � R. Drain Valves-Domestic and Heating Water Piping <br /> 1. 3/4" hose bibb, Chicago#15T, rough brass. <br /> 2. Equal to Apollo Series 78-100 ball valve, 600 pound, bronze body, chrome <br /> � plated brass ball and blow-out proof brass stem, reinforced Teflon seals and <br /> seats, and 3/4 inch hose thread outlet with cap. <br /> 3. Domestic water drains shall be equipped with vacuum breakers. <br /> � S. Gas Valves <br /> 1. 3" and Smaller: Equal to "Apollo" Series 80-100, UL rated 1/4 turn ball valve <br /> � rated for 600 psi WOG in a cold, non-shock application. Valves shall have cast <br /> bronze bodies, blowout proof brass stem, chromium plated brass ball, reinforced <br /> TFE stem bearings, seals and seats and an extended stem to accommodate <br /> insulation. <br /> � T. Backflow Preventers: <br /> 1. Acceptable backflow preventer manufacturers: Watts, Conbraco, Febco. <br /> � 2. Dishwasher, Shampoo Sink- Watts #N388,Atmospheric Vacuum Breaker. <br /> 3. Boiler- Watts#009-Reduced Pressure Zone. <br /> 4. All threaded nozzle fixtures to have atmospheric vacuum breakers. <br /> � 5. Installation of cross connection control devices and related valves shall maintain <br /> 1'-6" clear from wall or other obstructions, no more than 5'-0" above floor or <br /> closer than 2'-0"from floor. <br /> � (K0497 CBA701 8/1/97 <br /> 15150 - 2 <br /> � <br />